Year in Review: Peavy had a tumultuous 2009. He missed a big part of the year on the DL with a strained tendon in his ankle and a batted ball off his elbow, ending up with just 100 innings pitched. Additionally, he was traded to the White Sox (a trade he initially blocked). All of this came after an underwhelming, for Peavy, performance in 2008 in which his strikeout numbers fell below one per inning, his K/BB fell below 3.00, and his FIP raised above 3.50. All of these regressions occurred for the first time in his career. For this reason it is was encouraging that, for the little time he was on the mound in 2009, his performance was very good. His K/9 was a career best of 9.74 and his FIP of 2.99 was great and well below his career average.

The Year Ahead: After missing so much time in 2009 on the DL, and moving from one of the NL’s best pitcher’s parks to one of the AL’s best hitter’s parks, 2010 is a big question mark for Peavy. The change in league and park should result in an increase in WHIP and ERA and maybe a some fewer strikeouts, but most likely he will still be an elite pitcher. The bigger question is how Peavy's health will hold up. All of the uncertainty could make Peavy a nice high-upside gamble if he falls into the early-mid rounds. (Dave Allen)

Profile: For all the attention he received during 2009 trade rumors, Peavy hasn't actually been a great pitcher since 2007. Indeed, he's barely pitched more than 100 innings each of the last two seasons, and outside of the comfy confines of Petco Field and without the luxury of facing the pitcher, he's not the force he once was. This isn't to say Peavy isn't valuable. When he pitches, he'll still manage to avoid walks, get an above-average number of strikeouts (although not nearly as many now that he's in the AL) and he should rebound to have a decent ERA. But that all adds up to a pitcher who is above average at best, and now he's got injury concerns. Perhaps some people in your league have forgotten about Peavy and he'll actually be underpriced, but don't make the mistake of treating him like the fantasy star he was San Diego. Barring a miracle, that guy is long gone. (Matt Klaassen)

The Quick Opinion: Peavy was a fantasy star when he pitched in San Diego, but that was a team, a league, a park, and four years ago. Now he's an above-average pitcher (at best) with injury concerns.

Profile: Well, the White Sox are probably regretting their trade for Jake Peavy, and he now he seemingly gets hurt every season. Yes, his earlier reputation was inflated by his former home park in San Diego. But you probably are not going to be stuck with something like Peavy's contract for him. His ERA was not great in 2011, but his strikeout and walk rates were still there. He's barely pitched over 100 innings a season the last few years, but at this point he might be a good option for drafting or buying low. Of course, there is someone in about every league who hasn't paid attention for a while and probably still thinks of Peavy as an "ace." He isn't close to that, of course, so let that person do his or her thing. (Matt Klaassen)

The Quick Opinion: Peavy gets hurt every season, and when he's healthy he isn't the ace he was in his San Diego heyday, so don't treat him that way. However, there is a chance that in some leagues people will stay away and you can get a bargain on an above-average pitcher with upside.

Profile: Prior to 2012, Peavy's American League FIP portended a lower ERA than he was posting, and that finally came to pass. His 3.37 ERA was his lowest since moving out of PETCO Park in 2009 and his 1.10 WHIP was the third-lowest of his career. His strikeouts still haven't quite recovered back to his pre-injury levels. The White Sox clearly believed that Peavy had a few quality seasons left as they signed him to a two-year, $29 million deal just after the season ended. Peavy's days as an elite starter are behind him, but he's absolutely worth middle-high pick in mixed leagues. As long as that all those surgically repaired parts hold together. (Dan Wade)

The Quick Opinion: It took two-and-a-half years with the White Sox, but Jake Peavy finally gave the Southsiders a full, healthy season.

Profile: Since winning the NL Cy Young in 2007, Peavy has worked more than 175 innings just one time. Therein lies the risk with him -- he has trouble staying healthy. His yearly start totals since that award: 27, 16, 17, 18, 32, and 23. He does not hurt himself with walks, but has been more charitable with home runs since coming over to the American League as his home run rate has been at least 1.1 in three of the last four seasons. His strikeout rate has adjusted from the mid 20's to right around 20% these days as well. Additionally, his contact rate is increasing as batters are making more contact with him these days than they were before he switched leagues. He has nearly a 30-point split in his weighted on-base average between lefties and righties, preferring to face righties (.279) over lefties (.308). Wins, WHIP, and strikeouts is what Peavy brings you; the ERA upside is tied to his home run per fly ball rates, but he has to stay healthy in order to maximize his value. He has not been able to throw back to back 175+ inning seasons since 2006-2007. In recent seasons, he has spent time on the disabled list with a broken rib, a groin strain, shoulder tendonitis, a torn lat muscle, and an ankle injury -- and nothing predicts future DL stints like past ones. Bank on 24 starts and good skills. (Jason Collette)

The Quick Opinion: He has not been able to throw back to back 175+ inning seasons since 2006-2007. In recent seasons, he has spent time on the DL with a broken rib, a groin strain, shoulder tendonitis, a torn lat muscle, and an ankle injury. Bank on 24 starts and good skills.

Profile: Peavy had a miserable time with the Red Sox, as he posted a 4.72 ERA, saw his walk rate balloon to its highest mark since his first full season in 2003, and won just one measly game. Issues with the long ball hurt, and with his fastball velocity failing to average 90 mph for the first time in his career, asking if he was done as an effective pitcher was a valid question. But a midseason trade to the National League and pitcher friendly home park of the Giants was all Peavy needed to revive his career. His walk rate rebounded, he stopped allowing homers at an inflated rate, and his whiff rate jumped to its highest mark since 2009. While the Giants won't be a very good source of run support, staying in San Francisco will be favorable for his ratios. The return to the National League should also slow his strikeout rate decline and give him a better chance of enjoying a rebound. (Mike Podhorzer)

The Quick Opinion: A move to the National League and the pitcher friendly environs of AT&T Park are just what Peavy needed to reverse his swift decline. Now with the Giants for a full season, his strikeout rate and ratios will benefit and he should once again earn some mixed league value.

Profile: A return to the National League and a favorable pitching environment is just what the doctor ordered for the veteran righty. Since becoming a Giant, Peavy has posted a 2.99 ERA, though the underlying skills have been less impressive, as evidenced by his 4.16 SIERA during that same time. He has relied on a suppressed batting average on balls in play and home run per fly ball rate rate to push his ERA just below 3.00, which is not something that we should expect him to sustain. Though his fastball velocity is near a career low, his cutter and curve ball remain useful and continue to generate whiffs. But clearly, he no longer possesses the same strikeout ability he once did. At this point, he's safe to start only at home in shallower mixed leagues. (Mike Podhorzer)

The Quick Opinion: Despite continued erosion of his fastball velocity throughout the years, Peavy has remained a fantasy asset. However, a rising SIERA, and stark home/road splits make him a home-only play in shallower leagues.